215031531

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:137

約数の個数: 128

約数和(自身を含む): 392232960

約数和(自身を除く): 177201429

約数列:

[1, 3, 11, 13, 19, 23, 31, 33, 37, 39, 57, 69, 93, 111, 143, 209, 247, 253, 299, 341, 403, 407, 429, 437, 481, 589, 627, 703, 713, 741, 759, 851, 897, 1023, 1147, 1209, 1221, 1311, 1443, 1767, 2109, 2139, 2553, 2717, 3289, 3441, 4433, 4807, 5291, 5681, 6479, 7657, 7733, 7843, 8151, 9139, 9269, 9361, 9867, 11063, 12617, 13299, 13547, 14421, 14911, 15873, 16169, 17043, 19437, 21793, 22971, 23199, 23529, 26381, 27417, 27807, 28083, 33189, 37851, 40641, 44733, 48507, 62491, 65379, 79143, 84227, 100529, 101959, 121693, 149017, 164021, 176111, 177859, 187473, 210197, 239723, 252681, 283309, 290191, 301587, 305877, 342953, 365079, 447051, 492063, 501239, 528333, 533577, 630591, 719169, 849927, 870573, 1028859, 1503717, 1937221, 2312167, 3116399, 3772483, 5513629, 5811663, 6516107, 6936501, 9349197, 11317449, 16540887, 19548321, 71677177, 215031531]

約数ペア:

[(1, 215031531), (3, 71677177), (11, 19548321), (13, 16540887), (19, 11317449), (23, 9349197), (31, 6936501), (33, 6516107), (37, 5811663), (39, 5513629), (57, 3772483), (69, 3116399), (93, 2312167), (111, 1937221), (143, 1503717), (209, 1028859), (247, 870573), (253, 849927), (299, 719169), (341, 630591), (403, 533577), (407, 528333), (429, 501239), (437, 492063), (481, 447051), (589, 365079), (627, 342953), (703, 305877), (713, 301587), (741, 290191), (759, 283309), (851, 252681), (897, 239723), (1023, 210197), (1147, 187473), (1209, 177859), (1221, 176111), (1311, 164021), (1443, 149017), (1767, 121693), (2109, 101959), (2139, 100529), (2553, 84227), (2717, 79143), (3289, 65379), (3441, 62491), (4433, 48507), (4807, 44733), (5291, 40641), (5681, 37851), (6479, 33189), (7657, 28083), (7733, 27807), (7843, 27417), (8151, 26381), (9139, 23529), (9269, 23199), (9361, 22971), (9867, 21793), (11063, 19437), (12617, 17043), (13299, 16169), (13547, 15873), (14421, 14911)]